Suppose that sound is emitted uniformly in all directions by a public address system. the intensity at a location 26 m away from the sound source is 3.40 10-4 w/m2. what is the intensity at a spot that is 84 m away?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?